Cash register



FIG. 1 is a front perspective view of a cash register of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof, the left side view being a mirror image thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

I claim the ornamental design for a cash register, as shown and described. 